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16690105232 = 2417155939359
BaseRepresentation
bin11111000101100111…
…01100101110010000
31121002011101012012122
433202303230232100
5233140131331412
611400050513412
71130411360633
oct174263545620
947064335178
1016690105232
1170951470a9
123299595868
13175ca3c918
14b44891c1a
1567a3b1572
hex3e2cecb90

16690105232 has 40 divisors (see below), whose sum is σ = 34262092800. Its totient is φ = 7848929792.

The previous prime is 16690105231. The next prime is 16690105261. The reversal of 16690105232 is 23250109661.

It is a super-2 number, since 2×166901052322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16690105192 and 16690105201.

It is not an unprimeable number, because it can be changed into a prime (16690105231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404369 + ... + 443727.

It is an arithmetic number, because the mean of its divisors is an integer number (856552320).

Almost surely, 216690105232 is an apocalyptic number.

It is an amenable number.

16690105232 is an abundant number, since it is smaller than the sum of its proper divisors (17571987568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16690105232 is a wasteful number, since it uses less digits than its factorization.

16690105232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40943 (or 40937 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 16690105232 in words is "sixteen billion, six hundred ninety million, one hundred five thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 17 34 68 136 272 1559 3118 6236 12472 24944 26503 39359 53006 78718 106012 157436 212024 314872 424048 629744 669103 1338206 2676412 5352824 10705648 61360681 122721362 245442724 490885448 981770896 1043131577 2086263154 4172526308 8345052616 16690105232